M375587 五、新型說明： 【新型所屬之技術領域】 本創作涉及手工具的技術領域，尤其是指—種多 重扭力輸出的板手。 【先前技術】 早期的棘輪扳手’是在一施力單元的端部成型一 頭’頭外露出一插入件。在頭内安裝—棘輪傳動機構 和一選向裝置，此棘輪傳動機構會傳動插入件旋轉， 且旋轉方向由選向裝置來決定，使插入件產生單向卡 掣作用。如此一來，只要讓多邊形的插入件插入一套 筒中’並在一螺鎖用途的工件上面套住套筒，即能利 用施力單元的來回擺動，達到鎖緊或旋鬆工件之效 能。 幕所周知’只有鎖緊或旋鬆的剎那間，需要扳手 對工件施予最大的扭力值；其餘時間，即使以手指也 能扭轉呈鬆動狀的工件。但是，施力單元的擺動，因 習慣而有角度範圍的限制，遠比自轉性的扭動速率還 慢。更何況，來回擺動期間的插入件、套筒等平穩度 不易維持，鬆動的工件會造成扳手晃動的缺點。 針對上述弊端’手工具業者研發一種輸出大、小 扭力值的棘輪扳手。參考EP 0486710、US 4545267、 US 5105688、US 6070499、WO 8803999、WO 9207692 及台灣公告第494828號等專利案可知，此類棘輪扳 手的主要構造，是將一轉軸置入施力單元的内部，此 轉轴深入頭的端部，固設一嚙接棘輪傳動機構的齒 3 M375587 輪，並在轉軸另端結合一握持單元。除了鬆緊工件的 瞬間，需要棘輪扳手輸出最大扭力以外，其餘時間， 只要單向扭轉握持單元，即可傳輸動力至棘輪傳動機 構，使露出頭外的插入件旋轉，並以較小的扭力驅動 工件旋轉。 但是，這些專利案的構造，卻不適用靈活擺動的 頭，如何讓具備擺動的頭的扳手，也能輸出大、小兩 種扭力值，就成為本創作亟需克服的難題。 【新型内容】 本創作目的之一在於，提供傳動系統，讓具備擺 動的頭的扳手，也能輸出大、小兩種扭力值。 本創作目的之一在於，改善棘輪扳手的結構，藉 由離合機構取代棘輪傳動機構，得以適應傳動系統輸 出的動力。 為了達到上述目的，本創作多重扭力輸出的扳手 包括一施力單元、一傳動系統及一頭。該施力單元兩 端之一分叉有二支撐臂，另端連接一可轉動的握持單 元。該傳動系統埋設於兩支撐臂之一的内部，包含一 撓性傳動件，兩端各自固設一齒輪；一主動輪，與齒 輪嗜接而輸出握持單元的動力；一樞紐單元，與一從 動輪相連，該從動輪嗜接齒輪而輸出主動輪的動力。 該頭呈中空狀而聯結於兩支撐臂之間擺動，在内部安 裝一非圓形的插入件、一離合機構和一選向裝置；該 離合機構接收樞紐單元的動力，以驅動插入件旋轉； 該選向裝置決定插入件單向卡掣作用。 4 M375587 根據上述結構組成的棘輪扳手，具備擺動的頭， 透過傳動系統輸出小扭力，且扳手本身也能輸出大扭 力值。其次，傳動系統的動力傳遞至離合機構，讓插 入件能夠對工件施予大、小扭矩，使棘輪扳手的結構 得到改善。 有關本創作所採用之技術、手段及其功效，茲舉 一較佳實施例並配合圖式詳細說明於后，相信本創作 上述之目的、構造及特徵，當可由之得一深入而具體 的暸解。 【實施方式】 以下，基於圖式詳述實施例的具體結構。 第1圖顯示一扳手100，包括一握持單元10、一 施力單元20和一頭30。該握持單元10組裝於施力 單元20的端部且可扭動旋轉；該施力單元20另端呈 分叉狀而形成有二支撐臂21，並在兩支撐臂21之間 樞接著頭30且能予以擺動；該頭30呈扁圓形體，兩 面之一突出一插入件40，另面安裝有一按鈕42和一 選向裝置50。隨著按鈕42的按壓動作，讓一珠體41 凸出於四方柱形插入件40的壁面，或使珠體41沉入 插入件40中。該選向裝置50可被撥轉，控制插入件 40執行單向卡掣作用。 該扳手100的内部構造，可以從第2、3圖得到 初步暸解。圖中，在握持單元10及施力單元20裡面 安裝一轉軸11、一傳動系統12及一支撐軸24。該轉 軸11的局部被握持單元10包覆，二者結合為一體而 5 作動;轉軸U露出握持單元10的部分深入— :机里2中，此貫孔22位於施力單元20的内部，與 6又置在支撐臂21的容納室23相通。 ” ”亥傳動系統12埋設在容納室23中，包括一主 和齒輪131、一挽性傳動件132、一從動輪ΜM375587 V. New Description: [New Technology Field] This creation involves the technical field of hand tools, especially the wrenches with multiple torque outputs. [Prior Art] The early ratchet wrench 'is formed by inserting an insert at the end of a force applying unit. Mounted in the head - a ratchet drive and a selector, the ratchet drive rotates the drive insert and the direction of rotation is determined by the selector to create a one-way click on the insert. In this way, as long as the insert of the polygon is inserted into the sleeve and the sleeve is placed over the workpiece for the screw lock, the swinging force of the force applying unit can be used to achieve the effect of locking or unscrewing the workpiece. Known as the curtain, only the moment of locking or unscrewing requires a wrench to apply the maximum torque to the workpiece; the rest of the time, even with a finger, can be turned into a loose workpiece. However, the swing of the force applying unit is limited by the angle range of the habit, which is far slower than the twisting rate of the rotation. What's more, the smoothness of the inserts, sleeves, etc. during the swing back and forth is not easy to maintain, and loose workpieces can cause the wrench to sway. In response to the above drawbacks, the hand tool manufacturer has developed a ratchet wrench that outputs large and small torque values. It can be seen from the patents of EP 0486710, US Pat. No. 4, 545, 267, US Pat. No. 5,105, 688, US Pat. No. 6, 070, 098, WO 8 803 999, WO 9 207 692, and Taiwan Publication No. 494 828, the main structure of such a ratchet wrench is to place a rotating shaft into the interior of the force applying unit. The shaft is drilled into the end of the head, and a tooth M M3587 wheel that engages the ratchet transmission mechanism is fixed, and a holding unit is coupled to the other end of the rotating shaft. In addition to the moment of tightening the workpiece, the ratchet wrench is required to output the maximum torque. For the rest of the time, as long as the holding unit is twisted in one direction, the power can be transmitted to the ratchet transmission mechanism, so that the insert outside the exposed head is rotated and driven with a small torque. The workpiece is rotated. However, the construction of these patent cases does not apply to the flexible swinging head. How to make the wrench with the swinging head output the large and small torque values becomes a difficult problem to be overcome in this creation. [New content] One of the purposes of this creation is to provide a transmission system that allows the wrench with the oscillating head to output both large and small torque values. One of the purposes of this creation is to improve the structure of the ratchet wrench and to adapt to the power output of the transmission system by replacing the ratchet transmission mechanism with the clutch mechanism. In order to achieve the above object, the wrench for creating multiple torque outputs includes a force applying unit, a transmission system and a head. One of the two ends of the force applying unit has two support arms, and the other end is connected to a rotatable holding unit. The transmission system is embedded in one of the two support arms, and comprises a flexible transmission member, and each of the two ends is fixed with a gear; a driving wheel is coupled with the gear to output the power of the holding unit; a hinge unit, and a The driven wheel is connected, and the driven wheel is connected to the gear to output the power of the driving wheel. The head is hollow and coupled to swing between the two support arms, and internally mounts a non-circular insert, a clutch mechanism and a selector device; the clutch mechanism receives power of the hinge unit to drive the insert to rotate; The selector device determines the one-way latching action of the insert. 4 M375587 The ratchet wrench according to the above structure has a swinging head, which outputs a small torque through the transmission system, and the wrench itself can also output a large torque value. Secondly, the power of the transmission system is transmitted to the clutch mechanism, so that the insertion member can apply large and small torque to the workpiece, and the structure of the ratchet wrench is improved. With regard to the techniques, means and functions of the present invention, a preferred embodiment is described in detail with reference to the drawings, and it is believed that the above objects, structures and features of the present invention can be obtained from an in-depth and specific understanding. . [Embodiment] Hereinafter, a specific structure of an embodiment will be described in detail based on the drawings. Figure 1 shows a wrench 100 comprising a grip unit 10, a force applying unit 20 and a head 30. The grip unit 10 is assembled to the end of the urging unit 20 and is rotatable; the other end of the urging unit 20 is bifurcated to form two support arms 21, and the head 30 is pivoted between the two support arms 21 The head 30 is splayed; the head 30 is oblate, one of the two sides protrudes from the insert 40, and the other end is provided with a button 42 and a directional device 50. With the pressing action of the button 42, the bead body 41 is projected from the wall surface of the square cylindrical insert 40, or the bead 41 is sunk into the insert 40. The directional device 50 can be dialed and the control insert 40 performs a one-way click. The internal structure of the wrench 100 can be initially understood from Figures 2 and 3. In the figure, a rotating shaft 11, a transmission system 12 and a supporting shaft 24 are mounted in the holding unit 10 and the force applying unit 20. A part of the rotating shaft 11 is covered by the holding unit 10, and the two are integrated into one. The rotating shaft U exposes a part of the holding unit 10 deep into the machine 2, and the through hole 22 is located inside the force applying unit 20. And the 6 is placed in the receiving chamber 23 of the support arm 21 to communicate with each other. The "Hybrid transmission system 12" is embedded in the accommodating chamber 23 and includes a main and gear 131, a pulsating transmission member 132, and a driven rim.
Si 15。該主動輪13鎖固於深入貫孔22 端部’使握持單元10與施力單元20聯結 ί動扳動或自轉。兩齒輪131各自固定在撓性 13,另^端部’其中之—齒輪131健於主動輪 捤拉f—齒輪131與從動輪14具備嗜接關係，可將 呈的扭力輸出至從動輪14。該框紐單元15 入支撐臂21中，兩端之-係沿著轴向延 -閉^的輸入柱16’並與末尾的從動輪14和 端成二於1結合在一起。此外’該樞紐單元15另 頭30内而與一位於選向裝置別 Γ6ΓΓΧ 維持插：：在容納室23開口，配合支撐臂21 實土早7015的平衡。該閉塞件161由軸承予以 實知較佳，利於樞紐單幻5轉動。 位螺=轴二 =狀的圓柱體，以較大直徑部 身25而深入頭3。内二並小直徑部位為-桿 %。兩凸部19、26位#才于身25端面延伸有一凸部 撐著選向裝置50。頭3〇内且彼此相對，共同支 接著從第4圖瞭解到中空環形體的頭％具有 二孔洞31、若干分隔塊32與一凹部34。兩孔洞31 彼此相對地貫穿於頭30的壁面，供支撐軸24與樞紐 單元15穿過對應的孔洞31，可支持頭30在兩支撐 臂21之間作靈活的擺動。這些分隔塊32成型於頭 30的内面下方，且相鄰二分隔塊32之間形成一道執 槽33。該凹部34是陷入頭30開口處的環形槽，緊 鄰著前述分隔塊32。 想要知道頭30裡面的組裝情況，可配合第4〜7 圖獲得更詳細的暸解。 先從插入件40來看，其頂端的周圍成型一圈環 框43，並在中間位置貫穿一通孔44，該通孔44穿過 插入件40的整個柱身而呈階層狀，容許一壓縮彈簣 45留置於通孔44的中段位置。前述按鈕42呈扁圓 造型而置入環框43中，且中心區域沿著軸向延伸一 軸桿46。該軸桿46為階段狀的圓棒，穿過插入件40 的通孔44以及孔内的壓縮彈簀45，並在桿身對應珠 體41的位置凹陷一缺口 47。隨著按鈕42的按壓動 作，以軸桿46較大直徑部位擠壓著彈簣45，同時轴 桿46的缺口 47會讓珠體41下沉。施予按鈕42的外 力消失後，軸桿46會迅速彈起，且缺口 47周遭壁面 可推動珠體41往外凸出。 支撐插入件40的選向裝置50，包括一選向盤 51、一作動件56及一基座60。該選向盤51呈環片 狀而橫放在頭30的開口上方，在内環部位陷入一承 載槽52，且槽底貫穿有一圓孔53，供插入件40深入 圓孔53而讓環框43容納在承載槽52中。該選向盤 M375587 «* · * 51緊鄰圓孔53處朝下豎立著二對稱的抵制片54,各 抵制片54成型有一斜邊55。該作動件56呈環片狀 而位於選向盤51下方，其面對抵制片54的壁面凹陷 有二契合槽57,各契合槽57形狀與對應的抵制片54 彼此相合，且背對契合槽57的壁面凸伸四腳片58。 至於基座60,如圖所示概呈矩形體，在中間部位貫 穿有一内孔61，容許選向盤51的抵制片54及作動 件56置入孔中。該基座60外圍成型有二平行的平面 62，各平面62具有一貫穿至内孔61的小孔63，讓 對應的凸部19、26插進孔内，支撐基座60懸掛於頭 30裡面。特別是，抵制片54接觸作動件56或契合 槽57的壁面，可以成型凹凸配合的形狀，幫助抵制 片54取得短暫的定位效果，例如第9、10圖。 接著看到選向裝置50下方的離合機構70，主要 包括一動力輪80、一離合輪85及一底板90。該動力 輪80是環齒輪而可置入頭30内，其一面在邊緣環繞 一圈由若干齒塊構成的正齒列81，另面環繞一圈由 若干齒塊構成的第一順向齒列82,且邊緣抵住分隔 塊32頂面，使正齒列81與輸出部17周圍的齒18具 備嚙接關係。在動力輪80中間部位貫穿一第一致動 孔83，該第一致動孔83形狀與插入件40的非圓形 段相符，且孔壁凹陷有數量等同於腳片58的限制槽 84，各限制槽84供對應的腳片58插入，讓作動件 56能順著基座60的内孔61壁面滑動。 該離合輪85也是環齒輪，可置入頭30内，其内 環壁面成型一徑向環86，而外環壁面依等分設有多 8 若；亚在朝向動力輪80 -面環繞-圈由 由:二:=:逆_88,另面則環繞-圈 , 成的第一順向齒列89。該徑向環86與 二二糾無接觸關係，其表面放置一菁圈^，得以 續保有接觸腳片58的狀態。各賴 2 7置入對應的執槽33中，使該分隔塊32恰好 則丨導離合⑽順著軌 區域二ϊ一： 3〇的凹部34相符，其中心 :户：牙$-致動孔9卜且朝向離合輪85的-2、，堯一圈由若干齒塊構成的第二逆向㈣92。該 -致動孔91形狀與插入件4〇的非圓形段相符，使 底板90與插入件4〇相套，利用一嵌入插入件4〇的 將底板9〇緊靠著頭3〇的凹部34。在底板 和離口輪85之間夹有一彈性件73,致使離合輪 的第-逆向齒列88與第一順向齒列 接關係。 配=第1〜5圖及第8、9圖來看，扳手1〇〇欲鎖 緊工件時’可以先施予較小扭力值轉動工件，然後以 較大扭力值鎖緊工件。 【輸出小扭力值】扭轉握持單元1〇，驅使轉轴 11端邛的主動輪13帶動整個傳動系統12轉動。動 力.、’至由樞紐單元15的齒18傳遞至嚙接關係的正齒列 81，導致動力輪80以第一致動孔83的孔壁驅使插入 件40旋轉。由於第一順向齒列82嚙接第一逆向齒列 88的緣故，所以，動力輪8〇只能依圖面順時鐘方向 M375587 轉動且發出齒塊連續彈碰的「喀」聲，同時，插入件 40驅使工件往下持續深入一段距離。 【輸出大扭力值】握緊握持單元10,讓整個傳 動系統12連同動力輪80維持在不動的狀態，再加上 滑動凸塊87受到分隔塊32的轉向拘束力影響，使離 合輪85的第一逆向齒列88抵住動力輪80不能逆轉 等緣故，導致握持單元10往順時鐘方向扳動時，連 同施力單元20的兩支撐臂21帶動頭30 —起同向作 動，令插入件40施予較大的扭力而鎖緊工件。 相反地，先施予較大扭力旋鬆工件，即能以較小 扭力值輕鬆的轉動工件；前題是，必須選擇插入件 40的旋轉方向。 【選擇旋轉方向】隨著選向盤51的撥轉，抵制 片54的斜邊55會推移契合槽57的壁面，使作動件 56順著基座60内孔61移動一段距離。由於抵制片 54有足夠的長度，故腳片58在限制槽84的拘束下， 會推動環片71擠壓簧圈72而對徑向環86施力，使 離合輪85往底板90方向移動，直到第二順向齒列 89嚙接第二逆向齒列92為止。 【輸出大扭力值】握緊握持單元10,讓整個傳 動系統12、動力輪80乃至於插入件40等維持在不 動的狀態，再加上滑動凸塊87受到分隔塊32的轉向 拘束力影響，使離合輪85抵住動力輪80不能逆轉等 緣故，導致握持單元10往逆時鐘方向扳動時，連同 施力單元20的兩支撐臂21帶動頭30 —起同向作 動，令插入件40施予較大的扭力而旋鬆工件。 10 【輸出小扭力值】接下來’只要扭轉握持單元 10，經由轉轴η傳遞動力至傳動系统12，讓 8〇的第一致動孔83驅動插入件4〇旋轉。由於 9〇受到離合輪85限制只能逆時鐘轉動的緣故： 以，動力輪80只能依圖面逆時鐘方 塊連續彈碰的「,」聲，同時，插：二= 往上持續旋轉一段距離。 古，上述實施例僅為說明本創作，非為限制本創作。 Α習此技藝者從上述實施例衍生之各種變化、修改與 應用均在本創作之範脅内。 【圖式簡單說明】 第1圖是組合立體圖，表現本創作扳手之一較佳實施 例的具體形狀。 第2圖是剖視圖，表現第i圖沿2_2線剖開之内部結 構的聯結關係。 第3圖，剖視圖，局部放大第2圖的頭。 二5圖疋立體剖視圖，表現單一頭的外殼部位。 固疋77解立體圖’表現裝配在頭裡面的各元件且 體形狀。 ~ "苎疋組裝立體圖，表現第5圖各元件組裝後與傳 第7 ，系統的聯結關係。 圖疋剖視圖’表現第1圖沿7-7線剖開之内部結 ^ 構的聯結關係。Si 15. The driving wheel 13 is locked to penetrate the end portion of the through hole 22 to connect the holding unit 10 and the force applying unit 20 to move or rotate. The two gears 131 are each fixed to the flexible portion 13, and the gears 131 are engaged with the driving wheel. The f-gear 131 and the driven wheel 14 have an accommodating relationship, and the torque generated is output to the driven wheel 14. The frame unit 15 is inserted into the support arm 21, and the ends are coupled along the axially-closed input column 16' and joined to the last driven wheel 14 and end to two. In addition, the hinge unit 15 is disposed in the other end 30 and is located in the direction-selecting device. The opening is fixed in the accommodation chamber 23, and the balance of the support arm 21 is 7015. The occlusion member 161 is preferably known from a bearing to facilitate pivoting of the hinge. The snail = axis 2 = cylindrical body, with the larger diameter portion 25 and deeper into the head 3. The inner second and small diameter parts are - rod %. The two convex portions 19 and 26 are extended to have a convex portion on the end surface of the body 25 to support the direction selecting device 50. In the first 3 〇 and opposite to each other, the common branch is further understood from Fig. 4 that the head % of the hollow annular body has two holes 31, a plurality of partition blocks 32 and a recess 34. The two holes 31 penetrate the wall surface of the head 30 opposite to each other, and the support shaft 24 and the hinge unit 15 pass through the corresponding holes 31 to support the head 30 to flexibly swing between the two support arms 21. These partition blocks 32 are formed below the inner face of the head 30, and a groove 33 is formed between the adjacent two partition blocks 32. The recess 34 is an annular groove that is recessed into the opening of the head 30, adjacent to the partition block 32. If you want to know the assembly in the head 30, you can get a more detailed understanding with the 4th to 7th figures. First, a ring frame 43 is formed around the top end of the insert member 40, and a through hole 44 is formed in the intermediate position. The through hole 44 passes through the entire column of the insert member 40 to be hierarchical, allowing a compression bomb. The crucible 45 is left in the middle of the through hole 44. The aforementioned button 42 is formed in an oblate shape and placed in the ring frame 43, and the central portion extends along the axial direction of a shaft 46. The shaft 46 is a stepped round bar that passes through the through hole 44 of the insert 40 and the compressed magazine 45 in the hole, and a notch 47 is recessed at the position of the shaft corresponding to the bead 41. As the button 42 is depressed, the magazine 45 is pressed by the larger diameter portion of the shaft 46, and the notch 47 of the shaft 46 causes the bead 41 to sink. When the external force applied to the button 42 disappears, the shaft 46 is quickly bounced, and the wall surface of the notch 47 can push the bead 41 outward. The aligning device 50 supporting the insert 40 includes a aligning disc 51, an actuating member 56 and a pedestal 60. The selector disc 51 is in the shape of a ring and is placed above the opening of the head 30. The inner ring portion is recessed into a bearing groove 52, and the bottom of the slot is inserted through a circular hole 53 for the insert 40 to penetrate the circular hole 53 and the ring frame 43 is housed in the carrying groove 52. The aligning plate M375587 «* · * 51 is erected with two symmetrical resisting pieces 54 facing downwardly at the round hole 53, and each of the resisting pieces 54 is formed with a slanting edge 55. The actuating member 56 is formed in a ring shape and located below the direction selecting plate 51. The wall surface facing the resisting piece 54 is recessed with two engaging grooves 57. The shape of each engaging groove 57 and the corresponding resisting piece 54 are matched with each other, and the backing groove is matched with each other. The wall of 57 protrudes from the four-legged piece 58. As for the susceptor 60, as shown in the figure, it is substantially rectangular, and an inner hole 61 is inserted through the intermediate portion to allow the resisting piece 54 of the directional disc 51 and the actuating member 56 to be inserted into the hole. The base 60 is formed with two parallel planes 62. Each plane 62 has a small hole 63 extending through the inner hole 61. The corresponding protrusions 19 and 26 are inserted into the hole, and the support base 60 is suspended in the head 30. . In particular, the resisting piece 54 contacts the wall surface of the actuating member 56 or the engaging groove 57, and the shape of the concave-convex fit can be formed to help the resisting piece 54 achieve a short positioning effect, for example, Figs. Next, the clutch mechanism 70 below the directional device 50 is seen, which mainly includes a power wheel 80, a clutch wheel 85 and a bottom plate 90. The power wheel 80 is a ring gear and can be placed in the head 30. One side of the horn array 81 is formed by a plurality of teeth on one side of the ring, and the first forward dentition is formed by a plurality of teeth. 82, and the edge abuts against the top surface of the partition block 32, so that the dentition row 81 has a meshing relationship with the teeth 18 around the output portion 17. A first actuation hole 83 is formed in the middle portion of the power wheel 80. The shape of the first actuation hole 83 conforms to the non-circular section of the insert 40, and the hole wall is recessed with a limit groove 84 equal to the foot piece 58, Each of the restricting grooves 84 is inserted into the corresponding leg piece 58 to allow the actuating member 56 to slide along the wall surface of the inner hole 61 of the base 60. The clutch wheel 85 is also a ring gear, which can be placed in the head 30, and a radial ring 86 is formed on the inner ring wall surface, and the outer ring wall surface is equally divided by 8; the sub-circle-circle toward the power wheel 80 From: 2: =: inverse _88, the other side is surrounded by a circle, the first forward dentition 89. The radial ring 86 has no contact relationship with the second and second corrections, and a crest ring is placed on the surface to renew the state in which the contact piece 58 is contacted. Each of the partitions 7 is placed in the corresponding holding groove 33, so that the partitioning block 32 just happens to be guided by the clutch (10) along the track area: the concave portion 34 of the 3〇 is matched, and its center: household: tooth $-actuating hole 9 and facing the -2 of the clutch wheel 85, the second reverse direction (four) 92 consisting of a plurality of teeth. The shape of the actuating aperture 91 conforms to the non-circular section of the insert 4〇, such that the base plate 90 is nested with the insert 4〇, with a recess that engages the insert 4〇 against the head 3〇 34. An elastic member 73 is interposed between the bottom plate and the exit wheel 85 such that the first-reverse tooth row 88 of the clutch wheel is in line with the first forward tooth. With the =1~5 and 8th and 9th diagrams, when the wrench 1〇〇 is to lock the workpiece, the workpiece can be rotated with a small torque value and then locked with a large torque. [Output small torque value] The torsion grip unit 1 is driven to drive the drive shaft 12 of the rotary shaft 11 to drive the entire transmission system 12 to rotate. The transmission, to the dentition 81 of the engagement unit by the teeth 18 of the hinge unit 15, causes the power wheel 80 to drive the insert 40 to rotate with the aperture wall of the first actuation aperture 83. Since the first forward tooth row 82 is engaged with the first reverse tooth row 88, the power wheel 8 turns only in the clockwise direction M375587 and emits a "click" sound of the continuous collision of the tooth block. The insert 40 drives the workpiece down a distance. [Output Large Torque Value] The gripping unit 10 is gripped to maintain the entire transmission system 12 together with the power wheel 80 in a stationary state, and the sliding projection 87 is affected by the steering restraining force of the partition block 32, so that the clutch wheel 85 is When the first reverse tooth row 88 is not reversed by the power wheel 80, etc., when the grip unit 10 is pulled in the clockwise direction, the two support arms 21 of the force applying unit 20 drive the head 30 to act in the same direction, so as to insert The piece 40 applies a greater torque to lock the workpiece. Conversely, by first applying a large torque to loosen the workpiece, the workpiece can be easily rotated with a small torque value; the premise is that the direction of rotation of the insert 40 must be selected. [Selecting the Direction of Rotation] As the selector disk 51 is turned, the oblique side 55 of the resisting piece 54 is pushed to the wall surface of the engaging groove 57, and the actuator 56 is moved along the hole 61 in the base 60 by a distance. Since the resisting piece 54 has a sufficient length, under the restraint of the restricting groove 84, the leg piece 58 pushes the ring piece 71 to press the coil 72 to urge the radial ring 86 to move the clutch wheel 85 toward the bottom plate 90. Until the second forward tooth row 89 engages the second reverse tooth row 92. [Output Large Torque Value] The gripping unit 10 is gripped so that the entire transmission system 12, the power wheel 80, and even the insert 40 are maintained in a stationary state, and the sliding projection 87 is affected by the steering restraint force of the partition block 32. When the clutch wheel 85 is not reversed by the power wheel 80, and the grip unit 10 is pulled in the counterclockwise direction, the two supporting arms 21 of the force applying unit 20 act to move the head 30 in the same direction to make the insert. 40 Apply a larger torque and loosen the workpiece. 10 [Output small torque value] Next, as long as the grip unit 10 is twisted, power is transmitted to the transmission system 12 via the rotation shaft η, and the first actuation hole 83 of 8 turns the drive insert 4 to rotate. Because 9〇 is limited by the clutch wheel 85, it can only rotate counterclockwise: In this case, the power wheel 80 can only continuously hit the "," sound against the clock square, and at the same time, insert: 2 = continue to rotate for a distance . The above embodiments are merely illustrative of the present invention and are not intended to limit the creation. Various changes, modifications, and applications derived from the above-described embodiments of the skilled artisan are within the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a combined perspective view showing the specific shape of a preferred embodiment of the inventive wrench. Fig. 2 is a cross-sectional view showing the connection relationship of the internal structure taken along line 2_2 of the i-th image. Fig. 3 is a cross-sectional view showing the head of Fig. 2 partially enlarged. Figure 2 is a three-dimensional cross-sectional view showing the outer shell of a single head. The solid-state 77 is a three-dimensional view showing the components assembled in the head and the shape of the body. ~ "苎疋Assembled perspective view, showing the connection relationship between the components of Figure 5 and the system. The cross-sectional view of Fig. 1 shows the connection relationship of the internal structure cut along line 7-7 in Fig. 1.
弟8圖是A &句。P剖視立體圖，表現頭内各元件在未選向 時的聯結關係。 M375587 第9圖是局部剖視立體圖，表現頭内各元件在選向後 的聯結關係。 【主要元件符號說明】 100扳手 10握持單元 11轉軸 12傳動系統 13主動輪 131齒輪 132撓性傳動件 ^ 14從動輪 15樞紐單元 16輸入柱 161閉塞件 17輸出部 19凸部 18齒 20施力單元 21支撐臂 22貫孔 23容納室 24支撐軸 26凸部 25桿身 φ 30頭 31孔洞 32分隔塊 34凹部 33軌槽 40插入件 41珠體 42按鈕 43環框 44通孔 45壓縮彈簧 46軸桿 47缺口 50選向裝置 51選向盤 52承載槽 53圓孔 54抵制片 55斜邊 12 M375587 56作動件 58腳片 60基座 62平面 70離合機構 72簧圈 74扣環 80動力輪 82第一順向齒列 84限制槽 86徑向環 88第一逆向齒列 90底板 92第二逆向齒列 57契合槽 61内孔 63小孔 71環片 73彈性件 81正齒列 83第一致動孔 85離合輪 87滑動凸塊 89第二順向齒列 91第二致動孔 13Brother 8 is the A & P is a cross-sectional perspective view showing the connection relationship of the components in the head in the unselected direction. M375587 Figure 9 is a partial cross-sectional perspective view showing the connection relationship of the components in the head after the selection. [Main component symbol description] 100 wrench 10 grip unit 11 shaft 12 transmission system 13 drive wheel 131 gear 132 flexible transmission member ^ 14 driven wheel 15 hinge unit 16 input column 161 occlusion member 17 output portion 19 convex portion 18 tooth 20 Force unit 21 support arm 22 through hole 23 accommodation chamber 24 support shaft 26 convex portion 25 shaft φ 30 head 31 hole 32 partition block 34 recess 33 rail groove 40 insert 41 bead body 42 button 43 ring frame 44 through hole 45 compression spring 46 shaft 47 notch 50 selector device 51 selector disk 52 bearing groove 53 round hole 54 resisting piece 55 beveled edge 12 M375587 56 actuating member 58 foot piece 60 base 62 plane 70 clutch mechanism 72 coil ring 74 buckle ring 80 power wheel 82 first forward tooth row 84 restricting groove 86 radial ring 88 first reverse tooth row 90 bottom plate 92 second reverse tooth row 57 matching groove 61 inner hole 63 small hole 71 ring piece 73 elastic member 81 dentition column 83 first Actuating hole 85 clutch wheel 87 sliding projection 89 second forward tooth row 91 second actuating hole 13